CN112799345A - Gang drill on-line production control system and steps - Google Patents

Gang drill on-line production control system and steps Download PDF

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Publication number
CN112799345A
CN112799345A CN202110394361.9A CN202110394361A CN112799345A CN 112799345 A CN112799345 A CN 112799345A CN 202110394361 A CN202110394361 A CN 202110394361A CN 112799345 A CN112799345 A CN 112799345A
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plc
speed information
information
transmission
monitoring equipment
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CN112799345B (en
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汪春俊
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Nanjing Olo Household Co ltd
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Nanjing Olo Household Co ltd
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts

Abstract

A gang drill on-line production control system and steps, comprising: the method for transmitting the rotating speed information of the rotating rod of the motor to the monitoring equipment through the WIFI module by the PLC comprises the following procedures: the monitoring equipment receives a transmission inquiry command of rotating speed information of a rotating rod of the motor, which is transmitted by the PLC through the WIFI module connected with the monitoring equipment, and registers the PLC as equipment waiting for transmitting the information; the defects that wood chips are often gathered in the drill bit arranged on the gang drill on-line in the prior art, the wood chips are deposited in the drill bit, the PLC can disturb each other when synchronously transmitting the rotating speed information of the motor output end of the gang drill on-line equipment through the WIFI module connected with the PLC, and the efficiency of transmission achievement is improved through a mode of transmitting the rotating speed information again, so that the performance of rotating speed information transmission is weakened are effectively overcome.

Description

Gang drill on-line production control system and steps
Technical Field
The embodiment of the invention relates to the technical field of gang drill on-line, in particular to a gang drill on-line production control system and steps.
Background
The gang drill on-line equipment is a multi-hole processing machine with several drill bits and can be cooperatively connected and worked, and is composed of two drill bits, three drill bits, four drill bits, five drill bits and six drill bits. The gang drill machine converts the traditional manual gang drill action into mechanical action and is automatically completed by machinery.
In practical application, the multi-bit gang drill on-line equipment is widely applied due to the fact that the structure is relatively simple and the control is convenient, in addition, the existing gang drill on-line equipment with a plurality of bits is needed during wood drilling, the structure of the existing gang drill on-line equipment is complicated, in addition, a plurality of wood chips are formed during the wood drilling, the wood chips are often gathered in the bits of the gang drill on-line equipment, and the wood chips are often deposited in the bits due to the fact that the drilling period of a plurality of back drilling continuously increases under fine work, so the gang drill on-line equipment needs to be provided for overcoming the defects.
At present, the power facility like a motor is often applied to the gang drill online equipment, the rotation speed of a rotating rod of the motor is often monitored in different places along with the rise of the internet of things, a rotation speed sensor is arranged on the rotating rod of the motor and connected with a PLC (programmable logic controller), the PLC is also connected with a WIFI (wireless fidelity) module, the WIFI module is used for being connected with monitoring equipment in a WLAN (wireless local area network) arranged on the site where the gang drill online equipment is located, the monitoring equipment can be a notebook computer, so that the rotation speed sensor can transmit the rotation speed information of the rotating rod of the motor obtained by sampling to the PLC, and then the rotation speed information is transmitted to the monitoring equipment through the WIFI module to be displayed, and therefore the monitoring effect is achieved.
In addition, the number of the gang drill on-line devices on the site where the gang drill on-line devices are located is often a plurality, and each gang drill on-line device is independently provided with one PLC, on the other hand, in order to save cost, only one monitoring device is often arranged, so that the situation that a plurality of PLCs transmit the rotating speed information to the monitoring devices in the WLAN through the WIFI modules connected with the PLCs continuously occurs, then when one PLC transmits the rotating speed information to the monitoring devices in the WLAN, the other PLCs also have mutual disturbance during the synchronous execution of the transmission of the rotating speed information, and the final opportunity of the transmission of the rotating speed information is improved through a mode of transmitting the rotating speed information again through a plurality of loops; the benefits of such a mode are:
firstly, disturbance of the rotating speed information transmitted by another PLC through a WIFI module connected with the PLC is not considered, and the structure is not complicated;
secondly, when only one PLC transmits the rotating speed information through the WIFI module connected with the PLC, the process of configuring the bandwidth during the link construction is not required to be executed, and the efficiency is better.
On the other hand, however, the disturbance function of the rotation speed information transmission is not good, the disturbance when another PLC transmits the rotation speed information through the WIFI module connected to the PLC is to be weakened, the capacity of the information frame of the rotation speed information is as low as possible, the time length used for transmission is reduced, and thus the probability of transmission error of the rotation speed information is reduced, and the capacity of the information frame in the information transmission mode is constrained; in addition, when the plurality of PLCs synchronously transmit the rotational speed information through the WIFI modules connected to the PLCs, the rotational speed information transmission periods may be disturbed by each other under the condition of overlapping bandwidths, and the transmission achievement performance needs to be improved through a mode of re-transmitting the rotational speed information, so that the performance of the rotational speed information transmission is weakened.
Therefore, how to improve the performance of the rotational speed information transmission is a direction to be urgently improved.
Disclosure of Invention
In order to solve the above problems, the present invention provides a system and a process for controlling an online production of an gang drill, which effectively avoid the defects that wood chips are often accumulated in a drill bit of the online production of the gang drill, so that the wood chips are deposited in the drill bit, and when a plurality of PLCs synchronously transmit the rotational speed information of the motor output end of the online production of the gang drill through a WIFI module connected to the PLCs, the PLCs disturb each other, and need to improve the transmission achievement efficiency through a mode of transmitting the rotational speed information again, thereby weakening the performance of the rotational speed information transmission.
In order to overcome the defects in the prior art, the invention provides a solution for a gang drill on-line production control system and steps, which comprises the following specific steps:
a method of a gang drill on-line production control system, comprising:
the rotating speed sensor transmits the sampled rotating speed information of the rotating rod of the motor to the PLC, and the PLC transmits the rotating speed information of the rotating rod of the motor to the monitoring equipment through the WIFI module to be displayed;
the method for transmitting the rotating speed information of the rotating rod of the motor to the monitoring equipment by the PLC through the WIFI module comprises the following procedures:
step 1, receiving a transmission inquiry command of rotating speed information of a rotating rod of a motor, which is transmitted by a PLC through a WIFI module connected with the monitoring equipment, by the monitoring equipment, and registering the PLC as equipment waiting for transmitting the information;
step 2, the monitoring equipment monitors whether the WLAN channel is in an unoccupied condition or not;
if yes, go to step 3 to carry out;
in addition, when the WLAN channel is in an occupied condition, the monitoring device performs the rotation speed information transmission with another PLC at the present time, and the monitoring device transmits a WLAN channel occupation command to the device waiting for transmitting the information, so that the device not waiting for transmitting the information is not allowed to transmit a transmission inquiry command for the rotation speed information of the rotating rod of the motor to the monitoring device.
The transmission inquiry command for the rotating speed information of the rotating rod of the motor can be a first signaling, and a command symbol of the inquiry command and an identifier of the PLC are contained in the first signaling; the WLAN channel occupancy instruction can be signaling two, in which an instruction symbol with the occupancy instruction and an identifier of the further PLC that has established a link with the monitoring device are included.
After the PLC receives the WLAN channel occupation instruction through the WIFI module connected to the PLC, the PLC may further perform the following processes:
recognizing the command symbol and corresponding identifier of the occupation command by means of the WLAN channel occupation command;
determining whether the identifier is the same as the self identifier;
if so, not allowing a transmission inquiry command for the rotation speed information of the rotating rod of the motor to be transmitted to the monitoring equipment;
if not, the WLAN channel occupation instruction is ignored.
Step 3, performing rotation speed information transmission by using a WLAN channel and the equipment waiting for transmitting information, and transmitting a WLAN channel occupation instruction to the other PLC which is linked with the monitoring equipment through the WIFI module connected with the PLC so as to ensure that the other PLC which is linked with the monitoring equipment does not allow the transmission inquiry instruction for the rotation speed information of the rotating rod of the motor to be transmitted to the monitoring equipment through the WIFI module connected with the PLC;
the monitoring equipment can transmit a fifth signaling with the identifier of the equipment waiting for information transmission and the instruction symbol of the information frame transmission instruction to the equipment waiting for information transmission, when the equipment waiting for information transmission receives the fifth signaling, the identifier of the fifth signaling is firstly determined to be not the same as the identifier of the fifth signaling, and if the identifier of the fifth signaling is the same as the identifier of the fifth signaling, the information frame transmission to the monitoring equipment is started, so that the purpose of executing the rotation speed information transmission by using the WLAN channel and the equipment waiting for information transmission is achieved.
After the rotational speed information transmission is performed by using the WLAN channel and the device waiting for transmitting information, the following process can be performed:
determining whether to achieve or wait for the transmission of the rotational speed information of the device;
if not, then the rotating speed information is transmitted with the equipment waiting for transmitting the information;
if so, the other PLC which is linked with the monitoring equipment transmits a WLAN channel unoccupied instruction through the WIFI module connected with the other PLC.
The WLAN channel clear command can be a signaling six with a command symbol of the clear command, which signaling six is received by the PLC via the WIFI module connected thereto, and upon receipt of this signaling six, a transmission request command for rotational speed information of the rotary shaft of the motor can be transmitted again to the monitoring device.
The method for transmitting the rotating speed information of the rotating rod of the motor to the monitoring equipment by the PLC through the WIFI module further comprises the following procedures:
a-1, constructing a PLC performance library, and registering the performance condition of each PLC in the PLC performance library;
a-2, transmitting a performance monitoring instruction to each PLC;
and A-3, refreshing the performance state of the PLC in the PLC performance library, which returns the interception feedback message within the preset time length range, into information which is linked with the monitoring equipment, and refreshing the performance state of the PLC in the PLC performance library, which does not return the interception feedback message within the preset time length range, into information which is not linked with the monitoring equipment.
The monitoring equipment can construct a PLC performance library to register the performance condition of each PLC, and the identifier of the PLC is used as a mark for PLC performance library management and control, so that the identifiers of all PLCs are required to be unique and constant; the performance status and the performance status refreshing time of all PLCs in the WLAN are registered in the PLC performance base, and the performance status of the PLCs is intercepted by periodically transmitting signaling to all the registered PLCs in the PLC performance base by setting a constant intercepting time length. The format of the signaling comprises an identifier of a PLC to be intercepted and an instruction symbol for interception, after the PLC in the WLAN receives the signaling, once the identifier of the intercepted PLC is identified to be the same as the own identifier, the signaling can be returned in real time, and the signaling has the own identifier and the information of performance status; and after the monitoring equipment obtains the information of the performance condition, refreshing the performance condition of the corresponding PLC in the PLC performance library.
The method for transmitting the rotating speed information of the rotating rod of the motor to the monitoring equipment by the PLC through the WIFI module further comprises the following steps:
the following process can also be performed to achieve network entry for a new PLC within the WLAN:
when the PLC receives the third signaling through the WIFI module connected with the monitoring equipment, the monitoring equipment determines whether the identifier of the PLC is in the PLC performance library or not; if so, signal three is ignored; if not, the signaling IV with the self identifier and the instruction symbol of the network access response instruction is transmitted to the monitoring equipment;
and receiving the fourth signaling, refreshing the identifier in the fourth signaling into a PLC performance library, and refreshing the performance state of the PLC corresponding to the identifier into information which is linked with the monitoring equipment.
By means of the air supply sheet 23 arranged in the hollow interior of the spindle head 4, the annular column-shaped air guide channel 233 on the air supply sheet 23 and the annular column-shaped drill bit 43 on the spindle head 4 are communicated with each other, when the gang drill on-line production control system operates, namely, the sheet wood is placed on the cushion piece 32 arranged on the shelf 3 for wood, and the position to be drilled on the sheet wood is kept right opposite to each drill bit, so that the PLC controls the first air cylinder 8 and the second air cylinder 9 to pull the annular column-shaped drill bit 4 to downwards operate to drill the sheet wood, and the PLC also operates the air inlet fan to ensure that the annular column-shaped air guide channel 233 continuously sends air flow into the annular column-shaped drill bit 43 during drilling, thereby ensuring that wood chips in the annular column-shaped drill bit 43 are sent out by the air flow.
A gang drill on-line production control system comprising: the wood shelf comprises a base 2, wherein a PLC5 is arranged on the base 2, a shelf 3 for wood is arranged at the top of the base 2, a longitudinal column 6 is longitudinally arranged at the left side of the base 2, a first worm wheel 21 is sleeved at the top of the longitudinal column 6, a horizontal column 7 is fixedly connected to the right side of the first worm wheel 21, the first worm wheel 21 is meshed with a second worm wheel sleeved on a rotating rod of a motor 10, the motor 10 is connected with a PLC5, a first cylinder 8 and a second cylinder 9 connected with the PLC are fixedly connected to the wall surface of the bottom of the horizontal column 7, the first cylinder 8 and the second cylinder 9 are fixedly connected to the bottom of a spindle head 4, the spindle head 4 and the shelf 3 for wood are oppositely arranged, a cushion 32 is arranged on the shelf 3 for wood, a columnar drill 43 is arranged on the spindle head 4 facing the cushion 32, and a through hole 42 is arranged at the top of the spindle head 4, an air feeding sheet 23 is provided in the hollow interior of the spindle head 4;
a rotating rod of the motor is provided with a rotating speed sensor, the rotating speed sensor is connected with a PLC, the PLC is also connected with a WIFI module, and the WIFI module is connected with monitoring equipment in a WLAN (wireless local area network) arranged on the site where the gang drill on-line equipment is located;
the gang drill on-line production control system further comprises:
the receiving unit is used for receiving a transmission inquiry command of the rotating speed information of the rotating rod of the motor, which is transmitted by the PLC through the WIFI module connected with the monitoring equipment, and registering the PLC as the equipment waiting for transmitting the information;
an interception unit for intercepting whether the WLAN channel is in an unoccupied condition;
and the rotating speed information transmitting unit is used for executing rotating speed information transmission by using the WLAN channel and equipment waiting for transmitting information when the WLAN channel is in an unoccupied condition, and transmitting a WLAN channel occupation instruction to the other PLC which is linked with the monitoring equipment so as not to permit the other PLC which is linked with the monitoring equipment to transmit a transmission inquiry instruction of the rotating speed information of the rotating rod of the motor through the WIFI module super-monitoring equipment connected with the other PLC.
The motor 10 controls the horizontal column 7 through the first worm wheel 21, in addition, the rotation radian range of the horizontal column 7 is 0 to pi, and the wall thickness of the annular column-shaped drill 43 is 0.1 mm to 0.2 mm.
The cushion member 32 is in a strip shape, the annular columnar drill 43 can be sleeved with the cushion member 32, an annular columnar passage 232 is arranged in the middle of the top of the air supply piece 23, the annular columnar passage 232 extends out of the through hole 42 and is connected with the air supply fan 22, the inner diameter of the end part of the annular columnar passage 232 is larger than that of the end part of the annular columnar air guide passage 233, the bottom of the rack 3 for wood is provided with a container for sawdust, the air supply fan 22 is connected with the PLC5, the annular columnar air guide passage 233 is arranged at the position of the bottom of the air supply piece 23 facing the annular columnar drill 43, and the annular columnar air guide passage 233 and the annular columnar drill 43 are connected in a sealing manner.
The gang drill online production control system further comprises:
a first transmission unit for transmitting a WLAN channel occupation command to the device waiting to transmit information if the WLAN channel is in an occupation condition, so as not to allow the device waiting to transmit information to transmit a transmission inquiry command for the rotation speed information of the rotating rod of the motor to the monitoring device.
The transmission inquiry command for the rotating speed information of the rotating rod of the motor can be a first signaling, and a command symbol of the inquiry command and an identifier of the PLC are contained in the first signaling; the WLAN channel occupancy instruction can be signaling two, in which an instruction symbol with the occupancy instruction and an identifier of the further PLC that has established a link with the monitoring device are included.
The gang drill online production control system further comprises:
the device comprises a confirming unit, a judging unit and a judging unit, wherein the confirming unit is used for confirming whether the rotation speed information transmission of the device waiting for information transmission is achieved or not after the rotation speed information transmission is carried out by using a WLAN channel and the device waiting for information transmission;
a retransmission unit for performing the transmission of the rotational speed information with the apparatus waiting for the transmission of the information when the transmission of the rotational speed information of the apparatus waiting for the transmission of the information is achieved;
and the second transmission unit is used for transmitting the WLAN channel unoccupied instruction to another PLC which is linked with the monitoring equipment through the WIFI module connected with the other PLC when the rotation speed information transmission of the equipment for transmitting information is not achieved and is not waited.
The gang drill online production control system further comprises:
a construction unit for constructing a PLC performance library, and registering the performance status of each PLC in the PLC performance library;
a third transmission unit, configured to transmit a performance monitoring instruction to each PLC;
the first refreshing unit is used for refreshing the performance status of the PLC which returns the interception feedback message within the preset time length range in the PLC performance library into information which is linked with the monitoring equipment, and refreshing the performance status of the PLC which does not return the interception feedback message within the preset time length range in the PLC performance library into information which is not linked with the monitoring equipment.
The gang drill online production control system further comprises:
a transmission unit IV for transmitting a third signaling with the command symbol of the network access command and all identifiers in the PLC performance library in the WLAN so as to ensure that the PLC determines whether the identifier of the PLC is in the PLC performance library when the PLC receives the third signaling through the WIFI module connected with the PLC; if so, signal three is ignored; if not, the signaling IV with the self identifier and the instruction symbol of the network access response instruction is transmitted to the monitoring equipment;
and the refreshing unit II is used for receiving the signaling IV, refreshing the identifier in the signaling IV into the PLC performance library, and refreshing the performance state of the PLC corresponding to the identifier into information which is linked with the monitoring equipment.
The invention has the beneficial effects that:
the invention uses the air feeding sheet arranged in the hollow interior of the main shaft head, the annular column-shaped air guide channel on the air feeding sheet and the annular column-shaped drill bit on the main shaft head are communicated with each other, when the gang drill on-line production control system operates, namely the flaky wood is placed on the cushion piece arranged on the shelf for wood, the position to be drilled on the flaky wood is kept to face each drill bit, thus the PLC controls the first air cylinder and the second air cylinder to pull the annular column-shaped drill bit to operate downwards to drill the flaky wood, the PLC also operates the air inlet fan during drilling to ensure that the annular column-shaped air guide channel continuously feeds air flow into the annular column-shaped drill bit, wood chips in the annular column-shaped drill bit can be ensured to be sent out by the air flow, the wood chips cannot be deposited and form the accumulation of the annular column-shaped drill bit in the annular column-shaped drill bit, the continuous operation can be ensured to be not interrupted, the wood chips sent out by the air flow can be finally contained by a container for chips, so that the chips are prevented from polluting the environment, and the motor can drive the horizontal column to flexibly rotate under the control of the PLC so as to adjust the direction of the drill bit; the PLC of the invention transmits the rotating speed information of the rotating rod of the motor to the monitoring equipment through the WIFI module, by intercepting whether the WLAN channel is in an unoccupied condition or not when receiving a transmission inquiry command of rotating speed information of a rotating rod of the motor transmitted by the PLC through a WIFI module connected with the PLC, if not occupied, the tachometer message is communicated using the WLAN channel with the device waiting to communicate the message, the other PLC which is linked with the monitoring equipment is not allowed to transmit a transmission inquiry command of the rotating speed information of the rotating rod of the motor to the monitoring equipment through the WIFI module which is connected with the other PLC, only one PLC transmits the rotating speed information in a period of time, the phenomenon that the PLCs are disturbed each other during the period of transmitting the rotating speed information is prevented, the defect of contention of a WLAN channel when the PLC transmits the rotating speed information is overcome, and the performance and the accuracy of the transmission of the rotating speed information are improved; the defects that wood chips are often gathered in the drill bit arranged on the gang drill on-line in the prior art, the wood chips are deposited in the drill bit, the PLC can disturb each other when synchronously transmitting the rotating speed information of the motor output end of the gang drill on-line equipment through the WIFI module connected with the PLC, and the efficiency of transmission achievement is improved through a mode of transmitting the rotating speed information again, so that the performance of rotating speed information transmission is weakened are effectively overcome.
Drawings
FIG. 1 is a partial flow chart of the steps of a gang drill on-line production control system;
FIG. 2 is a partial block diagram of a gang drill on-line production control system;
FIG. 3 is a structural view of a gas delivery sheet;
FIG. 4 is a longitudinal projection of the air delivery sheet;
fig. 5 is a structural view of the spindle head.
Detailed Description
The following examples are provided to further illustrate the present invention.
As shown in fig. 1-5, the steps of the gang drill on-line production control system include:
at present, the disturbance function of the rotation speed information transmission is not good, the disturbance when another PLC transmits the rotation speed information through a WIFI module connected with the PLC is weakened, the capacity of an information frame of the rotation speed information is as low as possible, the time length for transmission is shortened, the probability of error transmission of the rotation speed information is reduced, and the capacity of the information frame in the information transmission mode is restrained; when the PLC synchronously transmits the rotating speed information through the WIFI modules connected with the PLC, the rotating speed information transmission periods can be disturbed mutually under the condition of overlapping bandwidths, and the efficiency of transmission achievement is improved through a mode of transmitting the rotating speed information again, so that the performance of transmitting the rotating speed information is weakened;
in addition, the rotating speed sensor also transmits the sampled rotating speed information of the rotating rod of the motor to the PLC, and the PLC transmits the rotating speed information of the rotating rod of the motor to the monitoring equipment through the WIFI module to be displayed, so that the monitoring effect is achieved;
the method for transmitting the rotating speed information of the rotating rod of the motor to the monitoring equipment by the PLC through the WIFI module comprises the following procedures:
step 1, receiving a transmission inquiry command of rotating speed information of a rotating rod of a motor, which is transmitted by a PLC through a WIFI module connected with the monitoring equipment, by the monitoring equipment, and registering the PLC as equipment waiting for transmitting the information;
here, the configuration of the WLAN bandwidth is manipulated via the monitoring device; the PLC obtains the rotating speed information of the rotating rod of the motor sampled by the rotating speed sensor through the rotating speed sensor connected with the PLC, and periodically or in a mode activated by an instruction, the rotating speed information of the rotating rod of the motor is transmitted to the monitoring equipment, so that the rotating speed information of the rotating rod of the motor is transmitted to the monitoring equipment to be displayed, and the monitoring effect is achieved.
In the invention, the WLAN bandwidth can be 2.4GWIFi, namely a frequency band range of 2.4 Ghz-2.5 GHz, the standard bandwidth is 20MHz, and the extended bandwidth is 40 MHz; the invention can overcome the defect of poor disturbance prevention performance of information transmission of which the LAN bandwidth can be 2.4 GWIFi.
Step 2, the monitoring equipment monitors whether the WLAN channel is in an unoccupied condition or not;
if yes, go to step 3 to carry out;
when the WLAN channel is in an unoccupied condition, the monitoring equipment does not perform the rotation speed information transmission with another PLC at present, at this time, the equipment waiting for information transmission performs the rotation speed information transmission without suffering the disturbance of the rotation speed information transmission of the other PLC through the WIFI module connected with the other PLC, at this time, step 3 is performed, and the equipment waiting for information transmission performs the rotation speed information transmission;
in addition, when the WLAN channel is in an occupied condition, the monitoring device performs rotation speed information transmission with another PLC at present, if the rotation speed information transmission performed with the device waiting for information transmission at this moment is disturbed by the rotation speed information transmission of the other PLC through a WIFI module connected with the monitoring device, the monitoring device can also transmit a WLAN channel occupation instruction to the device waiting for information transmission, so that the device waiting for information transmission is not allowed to transmit a transmission inquiry instruction of the rotation speed information of the rotating rod of the motor to the monitoring device.
Further, the transmission inquiry command of the rotating speed information of the rotating rod for the motor in the invention can be a first signaling, and the first signaling is provided with a command symbol of the inquiry command and an identifier of the PLC; the WLAN channel occupancy instruction can be signaling two, in which an instruction symbol with the occupancy instruction and an identifier of the further PLC that has established a link with the monitoring device are included. The identifier of the PLC in the first signaling is a unique identifier which is set for the PLC transmitting the first signaling in advance.
In this way, after the PLC receives the WLAN channel occupation instruction via the WIFI module connected to the PLC, the PLC may further perform the following process:
recognizing the command symbol and corresponding identifier of the occupation command by means of the WLAN channel occupation command;
determining whether the identifier is the same as the self identifier;
if so, not allowing a transmission inquiry command for the rotation speed information of the rotating rod of the motor to be transmitted to the monitoring equipment;
if not, the WLAN channel occupation instruction is ignored.
The invention improves the correctness of the execution of the command symbol of the occupation command through the mode of recognizing the identifier, and prevents the condition that the transmission of the inquiry command which is caused by the transmission error of the WLAN channel occupation command and can not transmit the rotating speed information of the rotating rod of the motor.
Step 3, performing rotation speed information transmission by using a WLAN channel and the equipment waiting for transmitting information, and transmitting a WLAN channel occupation instruction to the other PLC which is linked with the monitoring equipment through the WIFI module connected with the PLC so as to ensure that the other PLC which is linked with the monitoring equipment does not allow the transmission inquiry instruction for the rotation speed information of the rotating rod of the motor to be transmitted to the monitoring equipment through the WIFI module connected with the PLC;
in the invention, the monitoring equipment can transmit a fifth signaling with the identifier of the equipment waiting for information transmission and the instruction symbol of the information frame transmission instruction to the equipment waiting for information transmission, when the equipment waiting for information transmission receives the fifth signaling, the identifier of the fifth signaling is firstly determined to be different from the identifier of the fifth signaling, and if the identifier of the fifth signaling is the same as the identifier of the fifth signaling, the information frame is transmitted to the monitoring equipment, so that the purpose of using a WLAN channel and the equipment waiting for information transmission to execute the rotation speed information transmission is achieved.
After the information transmission is performed by using the WLAN channel and the device waiting for information transmission, the following process can be performed:
determining whether to achieve or wait for the transmission of the rotational speed information of the device;
if not, then the rotating speed information is transmitted with the equipment waiting for transmitting the information;
if so, the other PLC which is linked with the monitoring equipment transmits a WLAN channel unoccupied instruction through the WIFI module connected with the other PLC.
Within the invention, the WLAN channel unoccupied command can be a signaling six with a command symbol of the unoccupied command, and when the PLC receives the signaling six via the WIFI module connected thereto, a transmission inquiry command for the rotational speed information of the rotary lever of the motor can be transmitted again to the monitoring device.
The PLC of the invention transmits the rotating speed information of the rotating rod of the motor to the monitoring equipment through the WIFI module, by intercepting whether the WLAN channel is in an unoccupied condition or not when receiving a transmission inquiry command of rotating speed information of a rotating rod of the motor transmitted by the PLC through a WIFI module connected with the PLC, if not occupied, the tachometer message is communicated using the WLAN channel with the device waiting to communicate the message, and another PLC which is linked with the monitoring equipment is not allowed to transmit a transmission inquiry command of the rotating speed information of the rotating rod of the motor to the monitoring equipment through the WIFI module which is connected with the other PLC, only one PLC transmits the rotating speed information in a period of time, the phenomenon that the PLCs are disturbed each other during the transmission of the rotating speed information is prevented, the defect of contention of a WLAN channel when the PLC transmits the rotating speed information is overcome, and the performance and the accuracy of the transmission of the rotating speed information are improved.
The method for transmitting the rotating speed information of the rotating rod of the motor to the monitoring equipment by the PLC through the WIFI module further comprises the following procedures:
a-1, constructing a PLC performance library, and registering the performance condition of each PLC in the PLC performance library;
a-2, transmitting a performance monitoring instruction to each PLC;
and A-3, refreshing the performance state of the PLC in the PLC performance library, which returns the interception feedback message within the preset time length range, into information which is linked with the monitoring equipment, and refreshing the performance state of the PLC in the PLC performance library, which does not return the interception feedback message within the preset time length range, into information which is not linked with the monitoring equipment. The information that a link has been constructed with the monitoring device can be a character string "that a link has been constructed with the monitoring device", and the information that a link has not been constructed with the monitoring device can be a character string "that a link has not been constructed with the monitoring device".
The monitoring equipment can construct a PLC performance library to register the performance condition of each PLC, and the identifier of the PLC is used as a mark for PLC performance library management and control, so that the identifiers of all PLCs are required to be unique and constant; the performance status and the performance status refreshing time of all PLCs in the WLAN are registered in the PLC performance base, and the performance status of the PLCs is intercepted by periodically transmitting signaling to all the registered PLCs in the PLC performance base by setting a constant intercepting time length. The format of the signaling comprises an identifier of a PLC to be intercepted and an instruction symbol for interception, after the PLC in the WLAN receives the signaling, once the identifier of the intercepted PLC is identified to be the same as the own identifier, the signaling can be returned in real time, and the signaling has the own identifier and the information of performance status; and after the monitoring equipment obtains the information of the performance condition, refreshing the performance condition of the corresponding PLC in the PLC performance library.
The method for transmitting the rotating speed information of the rotating rod of the motor to the monitoring equipment by the PLC through the WIFI module further comprises the following steps:
the following process can also be performed to achieve network entry for a new PLC within the WLAN:
when the PLC receives the third signaling through the WIFI module connected with the monitoring equipment, the monitoring equipment determines whether the identifier of the PLC is in the PLC performance library or not; if so, signal three is ignored; if not, the signaling IV with the self identifier and the instruction symbol of the network access response instruction is transmitted to the monitoring equipment;
and receiving the fourth signaling, refreshing the identifier in the fourth signaling into a PLC performance library, and refreshing the performance state of the PLC corresponding to the identifier into information which is linked with the monitoring equipment.
The monitoring equipment is provided with a constant interception duration to periodically intercept whether a new PLC is to be accessed, the PLC in the WLAN is searched through a third transmission signaling, and the PLC in the WLAN judges whether the self-identity identifier is in a PLC performance library or not after receiving the signaling; if so, signal three is ignored; if the PLC is not in the network-accessing response command, the signaling IV with the self identifier and the command identifier of the network-accessing response command is transmitted to the monitoring equipment, at the moment, the monitoring equipment refreshes the identifier in the signaling IV into a PLC performance library, and the performance status of the PLC corresponding to the identifier is refreshed into information which is linked with the monitoring equipment.
By means of the air supply sheet 23 arranged in the hollow interior of the spindle head 4, the annular column-shaped air guide channel 233 on the air supply sheet 23 and the annular column-shaped drill bit 43 on the spindle head 4 are communicated with each other, when the gang drill on-line production control system operates, namely, the sheet wood is placed on the cushion piece 32 arranged on the shelf 3 for wood, and the position to be drilled on the sheet wood is kept right opposite to each drill bit, so that the PLC controls the first air cylinder 8 and the second air cylinder 9 to pull the annular column-shaped drill bit 4 to downwards operate to drill the sheet wood, and the PLC also operates the air inlet fan to ensure that the annular column-shaped air guide channel 233 continuously sends air flow into the annular column-shaped drill bit 43 during drilling, thereby ensuring that wood chips in the annular column-shaped drill bit 43 are sent out by the air flow.
A gang drill on-line production control system comprising: a frame-shaped base 2, wherein the base 2 is provided with a PLC5, the top of the base 2 is provided with a shelf 3 for wood, and the wood is in a sheet shape; in addition, a longitudinal column 6 is longitudinally arranged at the left side of the base 2, a first worm wheel 21 is sleeved at the top of the longitudinal column 6, in addition, the right side of the first worm wheel 21 is fixedly connected with the horizontal column 7, the first worm wheel 21 is meshed with a second worm wheel sleeved on a rotating rod of the motor 10, in addition, the input end of the motor 10 is connected with the output end of the PLC5, the bottom wall surface of the horizontal column 7 is fixedly connected with a first air cylinder 8 and a second air cylinder 9 which are connected with the PLC, the bottoms of the first air cylinder 8 and the second air cylinder 9 are fixedly connected with the main shaft head 4, in addition, the spindle head 4 and the shelf 3 for wood are arranged oppositely, the shelf 3 for wood is provided with a cushion piece 32, an annular column-shaped drill 43 is arranged on the position, facing the pad 32, of the upper surface of the spindle head 4, a through hole 42 is arranged in the middle of the top of the spindle head 4, and a sheet-shaped air feeding sheet 23 is arranged in the hollow interior of the spindle head 4;
the rotating rod of the motor is provided with a rotating speed sensor, the rotating speed sensor is connected with a PLC, the PLC is also connected with a WIFI module, the WIFI module is connected with monitoring equipment in a WLAN (wireless local area network) arranged on the site of the gang drill on-line equipment, the monitoring equipment can be a notebook computer, and therefore the rotating speed sensor can transmit the rotating speed information of the rotating rod of the motor obtained by sampling to the PLC and then transmit the rotating speed information to the monitoring equipment through the WIFI module for displaying, and the monitoring effect is achieved; in addition, the number of the gang drill on-line production control systems on the site where the gang drill on-line production control system is located is often a plurality, and each gang drill on-line production control system is independently provided with one PLC.
The gang drill on-line production control system further comprises:
the receiving unit is used for receiving a transmission inquiry command of the rotating speed information of the rotating rod of the motor, which is transmitted by the PLC through the WIFI module connected with the monitoring equipment, and registering the PLC as the equipment waiting for transmitting the information;
an interception unit for intercepting whether the WLAN channel is in an unoccupied condition;
and the rotating speed information transmitting unit is used for executing rotating speed information transmission by using the WLAN channel and equipment waiting for transmitting information when the WLAN channel is in an unoccupied condition, and transmitting a WLAN channel occupation instruction to the other PLC which is linked with the monitoring equipment so as not to permit the other PLC which is linked with the monitoring equipment to transmit a transmission inquiry instruction of the rotating speed information of the rotating rod of the motor through the WIFI module super-monitoring equipment connected with the other PLC.
The motor 10 controls the horizontal column 7 through the first worm wheel 21, in addition, the rotation radian range of the horizontal column 7 is 0 to pi, the wall thickness of the annular column-shaped drill 43 is 0.1 mm to 0.2 mm, and the thin-wall structure can play a role in sharp drilling of the blade.
The cushion member 32 is in a strip shape, the annular columnar drill 43 can be sleeved with the cushion member 32, an annular columnar passage 232 is arranged in the middle of the top of the air supply sheet 23, the annular columnar passage 232 extends out of the through hole 42 and is connected with the air supply fan 22, the inner diameter of the end part of the annular columnar passage 232 is larger than that of the end part of the annular columnar air guide passage 233, the bottom of the rack 3 for wood is provided with a container for chips, the air supply fan 22 is connected with the PLC5, the annular columnar air guide passage 233 is arranged at the position of the bottom of the air supply sheet 23 facing the annular columnar drill 43, the annular columnar air guide passage 233 and the annular columnar drill 43 are connected in a sealing manner, and the annular columnar air guide passage 233 on the air supply sheet 23 and the annular columnar drill 43 on the main spindle head 4 are communicated with each other through the air supply sheet 23 arranged in the hollow inner part of the main spindle head 4, when the exhaust drilling on-line production control system is operated, namely the flaky wood is placed on the cushion piece 32 arranged on the shelf 3 for wood, the position to be drilled on the flaky wood is kept to face each drill bit, so that the PLC controls the first air cylinder 8 and the second air cylinder 9 to pull the annular columnar drill bit 4 to operate downwards to drill the flaky wood, the PLC also operates the air inlet fan during drilling to ensure that the annular columnar air guide channel 233 continuously sends air flow into the annular columnar drill bit 43, the wood chips in the annular columnar drill bit 43 can be ensured to be sent out by the air flow, the wood chips can not be deposited and form the accumulation of the annular columnar drill bit 43 in the annular columnar drill bit 43, the continuous operation can be ensured without mistake, the operation of the exhaust drilling on-line production control system is ensured not to be stopped, the wood chips sent out by the air flow can be finally stored by a container for the chips, and the chips are prevented from polluting the environment, and the motor can drive the horizontal column to flexibly rotate under the control of the PLC so as to adjust the direction of the drill bit.
The gang drill online production control system further comprises:
a first transmission unit for transmitting a WLAN channel occupation command to the device waiting to transmit information if the WLAN channel is in an occupation condition, so as not to allow the device waiting to transmit information to transmit a transmission inquiry command for the rotation speed information of the rotating rod of the motor to the monitoring device.
The transmission inquiry command for the rotating speed information of the rotating rod of the motor can be a first signaling, and a command symbol of the inquiry command and an identifier of the PLC are contained in the first signaling; the WLAN channel occupancy instruction can be signaling two, in which an instruction symbol with the occupancy instruction and an identifier of the further PLC that has established a link with the monitoring device are included. The identifier of the PLC in the first signaling is a unique identifier which is set for the PLC transmitting the first signaling in advance.
The gang drill online production control system further comprises:
the device comprises a confirming unit, a judging unit and a judging unit, wherein the confirming unit is used for confirming whether the rotation speed information transmission of the device waiting for information transmission is achieved or not after the rotation speed information transmission is carried out by using a WLAN channel and the device waiting for information transmission;
a retransmission unit for performing the transmission of the rotational speed information with the apparatus waiting for the transmission of the information when the transmission of the rotational speed information of the apparatus waiting for the transmission of the information is achieved;
and the second transmission unit is used for transmitting the WLAN channel unoccupied instruction to another PLC which is linked with the monitoring equipment through the WIFI module connected with the other PLC when the rotation speed information transmission of the equipment for transmitting information is not achieved and is not waited.
The gang drill online production control system further comprises:
a construction unit for constructing a PLC performance library, and registering the performance status of each PLC in the PLC performance library;
a third transmission unit, configured to transmit a performance monitoring instruction to each PLC;
the first refreshing unit is used for refreshing the performance status of the PLC which returns the interception feedback message within the preset time length range in the PLC performance library into information which is linked with the monitoring equipment, and refreshing the performance status of the PLC which does not return the interception feedback message within the preset time length range in the PLC performance library into information which is not linked with the monitoring equipment.
The gang drill online production control system further comprises:
a transmission unit IV for transmitting a third signaling with the command symbol of the network access command and all identifiers in the PLC performance library in the WLAN so as to ensure that the PLC determines whether the identifier of the PLC is in the PLC performance library when the PLC receives the third signaling through the WIFI module connected with the PLC; if so, signal three is ignored; if not, the signaling IV with the self identifier and the instruction symbol of the network access response instruction is transmitted to the monitoring equipment;
and the refreshing unit II is used for receiving the signaling IV, refreshing the identifier in the signaling IV into the PLC performance library, and refreshing the performance state of the PLC corresponding to the identifier into information which is linked with the monitoring equipment.
While the embodiments of the present invention have been described above while illustrated in the drawings, it will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, and that various changes, modifications and substitutions can be made therein without departing from the scope of the embodiments of the present invention.

Claims (10)

1. A method for controlling a gang drill on-line production system, comprising:
the rotating speed sensor transmits the sampled rotating speed information of the rotating rod of the motor to the PLC, and the PLC transmits the rotating speed information of the rotating rod of the motor to the monitoring equipment through the WIFI module to be displayed;
the method for transmitting the rotating speed information of the rotating rod of the motor to the monitoring equipment by the PLC through the WIFI module comprises the following procedures:
step 1, receiving a transmission inquiry command of rotating speed information of a rotating rod of a motor, which is transmitted by a PLC through a WIFI module connected with the monitoring equipment, by the monitoring equipment, and registering the PLC as equipment waiting for transmitting the information;
step 2, the monitoring equipment monitors whether the WLAN channel is in an unoccupied condition or not;
if yes, go to step 3 to carry out;
when the WLAN channel is in the occupied condition, the monitoring equipment performs rotation speed information transmission with another PLC at present, and the monitoring equipment transmits a WLAN channel occupation command to the equipment waiting for transmitting information, so that the equipment not waiting for transmitting information is not allowed to transmit a transmission inquiry command for the rotation speed information of the rotating rod of the motor to the monitoring equipment;
and 3, performing rotation speed information transmission by using the WLAN channel and the equipment waiting for transmitting the information, and transmitting a WLAN channel occupation instruction to the other PLC which is linked with the monitoring equipment through the WIFI module connected with the PLC, so that the other PLC which is linked with the monitoring equipment does not allow the rotation speed information transmission inquiry instruction for the rotating rod of the motor to be transmitted to the monitoring equipment through the WIFI module connected with the PLC.
2. The drill string on-line production control system step as recited in claim 1, wherein the request command for transmitting the rotation speed information of the rotary rod of the motor can be a first signaling, and the first signaling carries a command symbol of the request command and an identifier of the PLC; the WLAN channel occupation instruction can be a second signaling, and an instruction symbol of the occupation instruction and an identifier of another PLC linked with the monitoring equipment are arranged in the second signaling;
after the PLC receives the WLAN channel occupation instruction through the WIFI module connected to the PLC, the PLC may further perform the following processes:
recognizing the command symbol and corresponding identifier of the occupation command by means of the WLAN channel occupation command;
determining whether the identifier is the same as the self identifier;
if so, not allowing a transmission inquiry command for the rotation speed information of the rotating rod of the motor to be transmitted to the monitoring equipment;
if not, the WLAN channel occupation instruction is ignored.
3. The system of claim 1, wherein the monitoring device is capable of transmitting a signaling five having an identifier of the device waiting to transmit information and an instruction of the frame transmission instruction to the device waiting to transmit information, and the device waiting to transmit information recognizes the identifier of the signaling five as the identifier of the monitoring device when receiving the signaling five, and starts to transmit the frame to the monitoring device if the identifier of the signaling five is the same, thereby performing the transmission of the rotational speed information using the WLAN channel and the device waiting to transmit information.
4. The system of claim 1, further comprising the steps of, after performing the rotational speed information transmission with the equipment waiting to transmit information using the WLAN channel:
determining whether to achieve or wait for the transmission of the rotational speed information of the device;
if not, then the rotating speed information is transmitted with the equipment waiting for transmitting the information;
if yes, the other PLC which is linked with the monitoring equipment transmits a WLAN channel unoccupied instruction through the WIFI module connected with the other PLC;
the WLAN channel clear command can be a signaling six with a command symbol of the clear command, which signaling six is received by the PLC via the WIFI module connected thereto, and upon receipt of this signaling six, a transmission request command for rotational speed information of the rotary shaft of the motor can be transmitted again to the monitoring device.
5. The method of claim 1, wherein the PLC transmits the rotation speed information of the rotary rod of the motor to the monitoring device via the WIFI module, and further comprising the following steps:
a-1, constructing a PLC performance library, and registering the performance condition of each PLC in the PLC performance library;
a-2, transmitting a performance monitoring instruction to each PLC;
and A-3, refreshing the performance state of the PLC in the PLC performance library, which returns the interception feedback message within the preset time length range, into information which is linked with the monitoring equipment, and refreshing the performance state of the PLC in the PLC performance library, which does not return the interception feedback message within the preset time length range, into information which is not linked with the monitoring equipment.
6. The method of claim 1, wherein the PLC further transmits the rotational speed information of the rotary rod of the motor to the monitoring device via the WIFI module, further comprising:
the following process can also be performed to achieve network entry for a new PLC within the WLAN:
when the PLC receives the third signaling through the WIFI module connected with the monitoring equipment, the monitoring equipment determines whether the identifier of the PLC is in the PLC performance library or not; if so, signal three is ignored; if not, the signaling IV with the self identifier and the instruction symbol of the network access response instruction is transmitted to the monitoring equipment;
and receiving the fourth signaling, refreshing the identifier in the fourth signaling into a PLC performance library, and refreshing the performance state of the PLC corresponding to the identifier into information which is linked with the monitoring equipment.
7. A gang drill on-line production control system, comprising: a base, wherein the base is provided with a PLC, the top of the base is provided with a shelf for wood, in addition, a longitudinal column is longitudinally arranged on the left side of the base, a first worm wheel is sleeved at the top of the longitudinal column, in addition, the right side of the first worm wheel is fixedly connected with a horizontal column, the first worm wheel is meshed with a second worm wheel sleeved on a rotating rod of the motor, in addition, the motor is connected with the PLC, a first air cylinder and a second air cylinder which are connected with the PLC are fixedly connected on the wall surface of the bottom of the horizontal column, the bottoms of the first air cylinder and the second air cylinder are fixedly connected with a main shaft head, in addition, the spindle head and the shelf for wood are arranged oppositely, the shelf for wood is provided with a cushion piece, an annular columnar drill bit is arranged on the main shaft head at the position facing the pad piece, a through hole is formed in the middle of the top of the main shaft head, and an air feeding sheet is arranged in the hollow interior of the main shaft head;
a rotating rod of the motor is provided with a rotating speed sensor, the rotating speed sensor is connected with a PLC, the PLC is also connected with a WIFI module, and the WIFI module is connected with monitoring equipment in a WLAN (wireless local area network) arranged on the site where the gang drill on-line equipment is located;
the gang drill on-line production control system further comprises:
the receiving unit is used for receiving a transmission inquiry command of the rotating speed information of the rotating rod of the motor, which is transmitted by the PLC through the WIFI module connected with the monitoring equipment, and registering the PLC as the equipment waiting for transmitting the information;
an interception unit for intercepting whether the WLAN channel is in an unoccupied condition;
and the rotating speed information transmitting unit is used for executing rotating speed information transmission by using the WLAN channel and equipment waiting for transmitting information when the WLAN channel is in an unoccupied condition, and transmitting a WLAN channel occupation instruction to the other PLC which is linked with the monitoring equipment so as not to permit the other PLC which is linked with the monitoring equipment to transmit a transmission inquiry instruction of the rotating speed information of the rotating rod of the motor through the WIFI module super-monitoring equipment connected with the other PLC.
8. The gang drill on-line production control system of claim 7, wherein the motor operates the horizontal column via a worm gear, further wherein the horizontal column rotates in an arc range of 0 to pi, and the wall thickness of the annular cylindrical bit is 0.1 mm to 0.2 mm;
the cushion piece is in a strip shape, the annular columnar drill bit can be sleeved with the cushion piece, an annular columnar channel is arranged in the middle of the top of the air supply piece, the annular columnar channel extends out of the through hole and is connected with the air supply fan, the inner diameter of the end part of the annular columnar channel is larger than that of the end part of the annular columnar air guide channel, a container for chip powder is arranged at the bottom of the rack for wood, the air supply fan is connected with the PLC, the annular columnar air guide channel is arranged at the position, facing the annular columnar drill bit, of the bottom of the air supply piece, and the annular columnar air guide channel is connected with the annular columnar drill bit in a sealing mode.
9. The gang drill on-line production control system of claim 8, further comprising:
a first transmission unit for transmitting a WLAN channel occupation command to the device waiting to transmit information if the WLAN channel is in an occupation condition, so as not to allow the device waiting to transmit information to transmit a transmission inquiry command for the rotation speed information of the rotating rod of the motor to the monitoring device;
the transmission inquiry command for the rotating speed information of the rotating rod of the motor can be a first signaling, and a command symbol of the inquiry command and an identifier of the PLC are contained in the first signaling; the WLAN channel occupation instruction can be a second signaling, and an instruction symbol of the occupation instruction and an identifier of another PLC linked with the monitoring equipment are arranged in the second signaling;
the gang drill online production control system further comprises:
the device comprises a confirming unit, a judging unit and a judging unit, wherein the confirming unit is used for confirming whether the rotation speed information transmission of the device waiting for information transmission is achieved or not after the rotation speed information transmission is carried out by using a WLAN channel and the device waiting for information transmission;
a retransmission unit for performing the transmission of the rotational speed information with the apparatus waiting for the transmission of the information when the transmission of the rotational speed information of the apparatus waiting for the transmission of the information is achieved;
a second transmission unit, configured to transmit, to another PLC linked to the monitoring device via a WIFI module connected to the PLC, a WLAN channel unoccupied instruction when the rotational speed information transmission of the device that does not achieve and wait for information transmission is performed;
the gang drill online production control system further comprises:
a construction unit for constructing a PLC performance library, and registering the performance status of each PLC in the PLC performance library;
a third transmission unit, configured to transmit a performance monitoring instruction to each PLC;
the first refreshing unit is used for refreshing the performance status of the PLC which returns the interception feedback message within the preset time length range in the PLC performance library into information which is linked with the monitoring equipment, and refreshing the performance status of the PLC which does not return the interception feedback message within the preset time length range in the PLC performance library into information which is not linked with the monitoring equipment.
10. The gang drill on-line production control system of claim 7, further comprising:
a transmission unit IV for transmitting a third signaling with the command symbol of the network access command and all identifiers in the PLC performance library in the WLAN so as to ensure that the PLC determines whether the identifier of the PLC is in the PLC performance library when the PLC receives the third signaling through the WIFI module connected with the PLC; if so, signal three is ignored; if not, the signaling IV with the self identifier and the instruction symbol of the network access response instruction is transmitted to the monitoring equipment;
and the refreshing unit II is used for receiving the signaling IV, refreshing the identifier in the signaling IV into the PLC performance library, and refreshing the performance state of the PLC corresponding to the identifier into information which is linked with the monitoring equipment.
CN202110394361.9A 2021-04-13 2021-04-13 Gang drill on-line production control system and steps Active CN112799345B (en)

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CN211813172U (en) * 2020-02-06 2020-10-30 北京中兴天传电气技术有限公司 Drilling machine lowering control system and variable-frequency drilling machine with same
CN112177518A (en) * 2020-09-29 2021-01-05 中油国家油气钻井装备工程技术研究中心有限公司 Linkage control method for drilling drive motor host and cooling fan

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010160019A (en) * 2009-01-07 2010-07-22 Ihi Corp System and method for correcting rotation balance
CN204965890U (en) * 2015-01-22 2016-01-13 中国石油技术开发公司 Rig installation analog system's PLC control system
CN106054795A (en) * 2016-06-27 2016-10-26 攀枝花学院 Middle deep hole trolley control system and control method thereof
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Denomination of invention: Online Production Control System and Steps for Drilling Arrays

Effective date of registration: 20230628

Granted publication date: 20210706

Pledgee: Zijin Branch of Nanjing Bank Co.,Ltd.

Pledgor: Nanjing Olo Home Furnishing Co.,Ltd

Registration number: Y2023980046161